Mason s jointer



(No Model) D. O'BRIEN. MASONS JOINTER.

Patented Aug. 11, 1896,

UNITED STATES PATENT OFFICE.

DENIS OBRIEN, OF MIDDLETOWN, CONNECTICUT.

MASONS JOINTER.

SPECIFICATION forming part of Letters Patent No. 565,784, dated August 11, 1896.

Application filed February 10, 1896. $eria1No. 578,670. (No model.)

To all whom it may concern:

Be it known that I, DENIS OBRIEN, of Middletown, in the county of Middlesex and State of Connecticut, have invented a new Improvement in Masons J ointers; and I do hereby declare the following, when taken in connection with the accompanying drawings, and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said-drawings constitute part of this specification, and represent, in-

Figure 1, a view in side elevation of a masons jointer constructed in accordance with my invention; Fig.2, a view partly in side elevation and partly in section and showing the tool charged or loaded with cement preparatory to being used; Fig. 3, a plan view of the device; Fig. 4:, a view of the device in transverse section on the line a b of Fig. 1.

My invention relates to an improvement in masons jointers which are used by masons for pointing masonry, the object being to produce a convenient and effective device for the purpose.

With these ends in view my invention consists in adevice having certain details'of con- 7 with a deep transverse mortar-receiving cavity A, which, as shown, has the form of a slot extending transversely through the body or frame, in which a pointing-1ever B is located, and hung upon a transverse pin B. The outer or pointing end of this lever is constructed in its inner edge with a concave longitudinally arranged pointing groove 13 while its inner or operating end is exposed for engagement and manipulation by the hand of the user. The outer end of the frame A of the device is also constructed in its inner edge with a concave groove A virtually forming a continuation of the groove 13*, formed in the edge of the lever. A spring C, interposed between the operating end of the lever and the Wall at the inner end of the cavity A, is arranged to exert a constant effort to throw the pointing end of the lever inward in the cavity A, The inner or operating end of the lever is made sufficiently elastic to adapt it to be sprung laterally under the hook A formed in the inner end of the frame, so as to adapt the tool to be conveniently carried and handled when not in use. If desired, the inner end of the lever may also be furnished with a finger-loop A (Indicated by broken lines in Fig. 1.)

In using the device the inner end of the lever is disengaged from the hook A leaving the spring 0 free to operate to throw the pointing end of the lever inward in the slot A, as shown in Fig. 2. Then the device, which is held in the hand edgewise, is pressed into a mass of mortar or cement with sufficient force to cause the same to enter and fill the cavity A, as shown by the stipple-Work in Fig. 2. The tool is then applied to the masonry and drawn along the joint, while suflicient pressure is exerted upon the inner end of the lever to gradually force the cement out of the tool into the joints of the masonry. As the cement is forced out while the tool is being drawn along it is shaped and formed into convex contour by. the molding or pointing groove A formed in the outer end of the tool. This goes on until all of the cement taken up by the tool when the same was forced into the mortar has been pushed out and applied, the very last of it being formed by the molding-groove B formed in the pointing end of the lever, as well as by the groove A formed in the body of the tool itself. The user again forces the tool edgewise into the mortar and applies it to the joints of themasonry, drawing it along thereon, as before de scribed, and so on.

It will readily be understood that by means of my improved tool masonry may be pointed with much more rapidity and neatness than under the old process, which consisted in applying the mortar to the masonry and then molding or shaping it with a grooved pointing-tool and then wiping the masonry, so as to remove the excess of mortar.

It is apparent that in carrying out my invention some slight changes from the construction herein shown and described may be made. I would therefore have it understood that I do not limit myself to the exact construction shown and described, but hold my self at liberty to make such changes and alterations as fairly fall Within the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a masons jointer, the combination with a frame or body containing a mortar-receiving cavity, of a pivotally-mounted lever having a pointing end located in the cavity, and an operating end adapted to be engaged by the hand for manipulation of the lever, substantially as described.

2. In a masons jointer, the combination With the frame or body thereof containing a mortar-receiving cavity, of a pointing-lever, one end of which is located in the said cavity, and a spring for operating the lever in one direction, substantially as described.

3. In a masons jointer, the combination With the body or frame thereof containing a 1nortar-receiving cavity, and having the inner edge of its outer end constructed with a longitudinal molding-groove, of a pointing-lever located in part in the said cavity, and adapted to force the mortar therefrom, and to be engaged and operated by the hand of the user, substantially as described.

4:. In a masons jointer, the combination With a doubly-curved body or frame containing a mortar-receiving cavity, of a lever pivoted in the said frame or body and having one end adapted to force the mortar from the said cavity, and its other end adapted to be engaged for manipulation by the hand of the user, substantially as described.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

DENIS OBRIEN.

W itnesscs FRED. O. EARLE, LILLIAN D. KELSEY. 

